Obesity and risk of ovarian cancer subtypes: Evidence from the Ovarian Cancer Association Consortium Journal Article
| Authors: | Olsen, C. M.; Nagle, C. M.; Whiteman, D. C.; Ness, R.; Pearce, C. L.; Pike, M. C.; Rossing, M. A.; Terry, K. L.; Wu, A. H.; Group, S.; Risch, H. A.; Yu, H.; Doherty, J. A.; Chang-Claude, J.; Hein, R.; Nickels, S.; Wang-Gohrke, S.; Goodman, M. T.; Carney, M. E.; Matsuno, R. K.; Lurie, G.; Moysich, K.; Kjaer, S. K.; Jensen, A.; Hogdall, E.; Goode, E. L.; Fridley, B. L.; Vierkant, R. A.; Larson, M. C.; Schildkraut, J.; Hoyo, C.; Moorman, P.; Weber, R. P.; Cramer, D. W.; Vitonis, A. F.; Bandera, E. V.; Olson, S. H.; Rodriguez-Rodriguez, L.; King, M.; Brinton, L. A.; Yang, H.; Garcia-Closas, M.; Lissowska, J.; Anton-Culver, H.; Ziogas, A.; Gayther, S. A.; Ramus, S. J.; Menon, U.; Gentry-Maharaj, A.; Webb, P. M.; on behalf of the Ovarian Cancer Association Consortium |
| Article Title: | Obesity and risk of ovarian cancer subtypes: Evidence from the Ovarian Cancer Association Consortium |
| Abstract: | Whilst previous studies have reported that higher BMI increases a woman's risk of developing ovarian cancer, associations for the different histological subtypes have not been well defined. As the prevalence of obesity has increased dramatically, and classification of ovarian histology has improved in the last decade, we sought to examine the association in a pooled analysis of recent studies participating in the Ovarian Cancer Association Consortium. We evaluated the association between BMI (recent, maximum and in young adulthood) and ovarian cancer risk using original data from 15 case-control studies (13 548 cases and 17 913 controls). We combined study-specific adjusted odds ratios (ORs) using a random-effects model. We further examined the associations by histological subtype, menopausal status and post-menopausal hormone use. High BMI (all time-points) was associated with increased risk. This was most pronounced for borderline serous (recent BMI: pooled ORZ1.24 per 5 kg/m2; 95% CI 1.18-1.30), invasive endometrioid (1.17; 1.11-1.23) and invasive mucinous (1.19; 1.06-1.32) tumours. There was no association with serous invasive cancer overall (0.98; 0.94-1.02), but increased risks for low-grade serous invasive tumours (1.13, 1.03-1.25) and in pre-menopausal women (1.11; 1.04-1.18). Among post-menopausal women, the associations did not differ between hormone replacement therapy users and non-users. Whilst obesity appears to increase risk of the less common histological subtypes of ovarian cancer, it does not increase risk of high-grade invasive serous cancers, and reducing BMI is therefore unlikely to prevent the majority of ovarian cancer deaths. Other modifiable factors must be identified to control this disease. © 2013 Society for Endocrinology. |
| Keywords: | adult; controlled study; human tissue; major clinical study; case control study; cancer risk; endometrioid carcinoma; cancer grading; evidence based medicine; ovarian cancer; ovarian neoplasms; ovary cancer; odds ratio; obesity; histology; cancer mortality; risk assessment; risk; cancer invasion; body mass; body mass index; societies, medical; premenopause; menopause; hormone substitution; bmi; neoplasm grading |
| Journal Title: | Endocrine-Related Cancer |
| Volume: | 20 |
| Issue: | 2 |
| ISSN: | 1351-0088 |
| Publisher: | Bioscientifica Ltd |
| Date Published: | 2013-03-22 |
| Start Page: | 251 |
| End Page: | 262 |
| Language: | English |
| DOI: | 10.1530/erc-12-0395 |
| PROVIDER: | scopus |
| PUBMED: | 23404857 |
| PMCID: | PMC3857135 |
| DOI/URL: | |
| Notes: | --- - "Export Date: 3 June 2013" - "CODEN: ERCAE" - "Source: Scopus" |
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